Answer:
The side length of Emma's photo = 3 inches
Step-by-step explanation:
Emma wants to enlarge a square photo and print it to a canvas.
From the above question, we can deduce that:
The scale
= The side length on the canvas : The side length of the photo
= 4in : 1 in.
What is the side length of Emma’s Photo?
The side length of the canvas is 12in.
Hence:
Side length on the canvas/ Side length of the photos
4 in/1 in = 12 in/x in
Cross Multiply
= 4 × x = 1 × 12
= x = 12/4
x = 3 inches
Hence, the side length of Emma's photo = 3 inches